linux-kernel - [PATCH v4 0/6] blk-wbt: simple improvment to enable wbt correctly

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Message-Id: <20220930031906.4164306-1-yukuai1@huaweicloud.com>
Date:   Fri, 30 Sep 2022 11:19:00 +0800
From:   Yu Kuai <yukuai1@...weicloud.com>
To:     jack@...e.cz, hch@...radead.org, ebiggers@...nel.org,
        paolo.valente@...aro.org, axboe@...nel.dk
Cc:     linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        yukuai3@...wei.com, yukuai1@...weicloud.com, yi.zhang@...wei.com
Subject: [PATCH v4 0/6] blk-wbt: simple improvment to enable wbt correctly

From: Yu Kuai <yukuai3@...wei.com>

changes in v4:
 - remove patch 3 from v3
 - add patch 2,3 in v4

changes in v3:
 - instead of check elevator name, add a flag in elevator_queue, as
 suggested by Christoph.
 - add patch 3 and patch 5 to this patchset.

changes in v2:
 - define new api if wbt config is not enabled in patch 1.

Yu Kuai (6):
  elevator: remove redundant code in elv_unregister_queue()
  blk-wbt: remove unnecessary check in wbt_enable_default()
  blk-wbt: make enable_state more accurate
  blk-wbt: don't show valid wbt_lat_usec in sysfs while wbt is disabled
  elevator: add new field flags in struct elevator_queue
  blk-wbt: don't enable throttling if default elevator is bfq

 block/bfq-iosched.c |  2 ++
 block/blk-sysfs.c   |  6 +++++-
 block/blk-wbt.c     | 26 ++++++++++++++++++++++----
 block/blk-wbt.h     | 17 ++++++++++++-----
 block/elevator.c    |  8 ++------
 block/elevator.h    |  5 ++++-
 6 files changed, 47 insertions(+), 17 deletions(-)

-- 
2.31.1